<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Hello</title>
    <script>
        window.onload=function () {
            document.getElementById("mg").onclick=function () {
                var date = new Date().getTime();
                this.src="CheckOutDemo"+"?"+date;
            }
        }
    </script>
    <style>
        #delsion{
            display: inline;
        }
    </style>
</head>
<body>
<img src="CheckOutDemo" id="mg">
<p id="delsion">看不清楚请双击图片……</p>
<a href="ServletDon?filename=最全java笔记.png">下载</a>
<img src="/day15/img/最全java笔记.png">
</body>
</html>